<!doctype html>
<html>
	<head>
		<!--声明当前页面的编码集：charset=gbk,gb2312(中文编码)，utf-8国际编码-->
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
		<!--当前页面的三要素-->
		<title>html模板</title>
		<meta name="Keywords" content="关键词,关键词">
		<meta name="description" content="">

		<!--css,js-->
		<style type="text/css">
			*{margin:0;padding:0;}
			body{background:url(images/bg.png);no repeat top center;height:4823px;}
			.scroll_top{width:66px;height:66px;position:fixed;bottom:100px;right:20px;}
			.scroll_top .n_btn{display:block;width:66px;height:66px;background:url(images/top.png);}

		</style>

	</head>
<body oncontextmenu='self.event.returnValue=false' onselectstart="return false">

	<div class="scroll_top">
		<a href="#" class="n_btn"></a>
	</div>
	
	<script type="text/javascript" src="js/jquery-ui-1.11.3.min.css"></script>
	<script type="text/javascript">
	
		  $(".n_btn").click(function(){
			$("html,body").animate({
				scrollTop:0
				},1000);

			});



			/*阻止右键菜单的默认*/
			function click(){
				if(event.button==2){
					alert( '本网站欢迎您 !!');
				}
			}
			document.onmousedown = click;

	</script>
	



</body>
</html>